It's time to stop following teachers/pastors/rabbis who are criminals or "false prophets", etc.

You know, people truly should stop following teachers/pastors/rabbis who are known criminals or "false prophets" or who have affairs and become divorced, or end up in prison for defrauding people, or those whose teachings simply don't line up with Scripture. (Remember, WE have a responsibility to verify in Scripture everything we see, read or hear! It seems most people don't know Scripture well enough to "chew the meat and spit out the bones" and so, to keep from becoming confused, it is imperative that they stay far away from teachers who don't meet God's standards.)

It always saddens me to see people arguing, "Well, so he made a mistake, So what? He's repented and I forgive him."

That's fine - forgive all you want. But also be aware of the fact that those who have deliberately stepped outside of Torah and are busy taking others with them, you're following those who no longer meet the requirements of an Elder, according to Matthew 18 and Titus 1:5-9:

Titus 1:5 For this reason I left you in Crete, that you would set in order what remains and appoint elders in every city as I directed you, 6 namely, if any man is above reproach, the husband of one wife, having children who believe, not accused of dissipation or rebellion. 7 For the [a]overseer must be above reproach as God’s steward, not self-willed, not quick-tempered, not addicted to wine, not pugnacious, not fond of sordid gain, 8 but hospitable, loving what is good, sensible, just, devout, self-controlled, 9 holding fast the faithful word which is in accordance with the teaching, so that he will be able both to exhort in sound doctrine and to refute those who contradict.

YHWH commands us to stay away from frauds and liars and generally "bad" people (Matthew 10:13-15; Mark 6:11; Luke 10:11 and Acts 13:51 and 2 Chronicles 14. See also all these scriptures: https://www.openbible.info/topics/bad_influence).

Here are some quick examples of what will happen to those who purposely and without repentance dare to step outside YAH's Torah and take others with them:

Revelation 21: 8. But to the timid and the unbelieving, and to the sinful and polluted, and to manslayers and whoremongers, and sorcerers, and idolaters, and to all false persons, their portion will be in the lake that burns with fire and sulfur, which is the second death. (AENT)

Micah 2:1 Woe to those plotting wickedness, and working out evil upon their beds! In the light of the morning they practise it, because it is in the might of their hand.
Mic 2:2 And they coveted fields and seized them, also houses, and took them away. And they oppressed a man and his house, a man and his inheritance.
Mic 2:3 Therefore thus said יהוה, “See, against this clan I am planning evil, from which you do not remove your necks, nor walk proudly, for this is a time of evil.
Mic 2:4 “In that day one shall lift up a proverb against you, and he shall lament with a bitter lamentation, and shall say, ‘We have been utterly ravaged! He changes the inheritance of my people. How He removes it from me! He apportions our fields to the backslider.’ ”
Mic 2:5 “Therefore you shall have no one in the assembly of יהוה to divide the land by lot.
Mic 2:6 “You do not preach, they preach. They do not preach to these, reproaches are not turned back.
Mic 2:7 “Are you called ‘House of Yaʽaqoḇ’? Has the Spirit of יהוה been limited? Are these His doings? Do not My words do good to the one walking uprightly?
Mic 2:8 “And lately My people have risen up as an enemy. You strip off the robe with the garment from those who trust you, as they pass by – those returning from battle.
Mic 2:9 “You have driven the women of My people from their pleasant houses. You have taken away My splendour from their children forever.
Mic 2:10 “Arise and go, for this is not your rest, because uncleanness destroys, and the destruction is grievous.
Mic 2:11 “If a man walking after wind and falsehood has lied: ‘I preach to you of wine and of strong drink,’ he shall be the ‘preacher’ of this people!
Mic 2:12 “I shall certainly gather all of you, O Yaʽaqoḇ, I shall bring together the remnant of Yisra’ĕl, put them together like sheep of the fold, like a flock in the midst of their pasture, they being noisy because of men.
Mic 2:13 “The breach-maker shall go up before them. They shall break out, and pass through the gate, and go out by it, and their sovereign pass before them, with יהוה at their head!” (ISR)