Trump will tackle the issues that the GOP won’t.
Quite possibly... but he might not be fighting for the result that you want... and having 16 consecutive years of Presidents ignoring the Constitution will leave an entire generation believing that it in't important. (Aren't the Millennials stupid enough as it is, voting for Socialism over Capitalism by wide margins already?).
It will likely be fun to watch, and he would likely get more done faster than anyone else could do it... but there are obvious costs and almost surely many unintended consequences that Trump fans just seem to be utterly ignorant of.