Meh. An awful lot of GOP figures are more than happy to use this occasion to fundraise and confirm their rhetoric that they have been unfairly targeted all of these years.
I don't think it's much of a shock that Trump is getting indicted. Heck, that was kind of part of the conservative theory for a good while now. They're not so much losing their minds as they are nodding and saying, yep, saw this coming.
And of course quite a lot of people on the Republican side of things are happy for the off chance that this rids them of the guy.