I most definitely see impeachment over stupid stuff as completely helping President Trump.
Here's the thing though, conservatives know this.
It's not the conservatives that are the concern here.
Without the vast majority of the democrats and "independents" that voted for him in 2016, Trump's re-election is in jeopardy.
And it's those that get their news from sources other than FR, or even Fox, they are swayable by definition. Otherwise, they wouldn't be independents. They are going to see that no impeachment happened over Russia, but impeachment (may) happen over Ukraine. Most of those people haven't heard, and won't hear, anything about Biden's wrongdoing.
When Clinton was impeached, and the (R)'s subsequently lost politically, Clinton and the (D)'s had the media on their side (against impeachment). The roles are reversed here with the media, academia, hollywood and even some (R)'s in support of impeachment.
IMV, conservatives need to take this impeachment process seriously. This isn't a slam dunk winner for Trump.