Impeachment is a necessary tool to prevent a corrupt autocrat who wields power over the country, from taking even worse actions in the future, whether it's Trump or a future president. If there are no boundaries now, there may not be any left in the future when they're even more desperately needed.
What you see in these RW Republican politicians on most issues is pretty consistent support for allowing the deaths of others to poverty, guns, wars, old age, etc.. Their "pro-life" position on abortion is an anomaly...and that's because to them, this issue isn't really about religious beliefs or compassion, It's about something else far more crass and cynical. It's about power.
The imperfections of a democracy tend to be known to all who participate in it and more often than not, disregard those little imperfections because they are constantly hit with a barrage of rhetoric to confuse and conquer.
With 20 Plus individuals seeking to be Commander in Chief, it is worthwhile to consider what makes one person superior to another in seeking the nomination. Scholars have assembled a number of lists. Here is an essay that gathers a number of them together.
Both Clinton and Biden have since, apologized for their votes for H.J. Res. 114 because they did not think at the time that President Bush would use it as an excuse to invade Iraq. The irony is that now the vote is being used against President Obama's vice president in the same manner he used it against his 2008 primary opponent.
Joe Biden voted for most of the things Hillary Clinton voted for when they were both in the Senate, but Clinton was accused of being every negative thing anyone could think of for those votes.
There are many traps for conscientious candidates who run against a sociopathic demogogue who shows no hesitation to damage society or abuse the powers of the presidency to win at any cost. Avoiding them is critical.
It's like the Republicans have built a scale where the fulcrum is so far to the right that conservatism would be in the center and issues most Americans support are "far left".
Trump explained his surprising support for R. Kelly to run for the Senate in Alabama. He's got charisma, he feels for younger people and he doesn't take no for an answer," Trump groped.
If Trump can't be removed from office through impeachment, can't or won't be indicted and won't voluntarily leave the White House even after he's proven to have committed federal crimes...can he be leveraged to resign? The answer to that may be yes.