He won't be impeached because we have a Democrat controlled Senate. The House of Representatives can bring up articles of impeachment, but it will go nowhere.
Of course, what you wrote about Congress is also true.
Even democrats have lines they will not cross. MA is a liberal state but as a former resident Bostonians would call for impeachment should they find out that the president allowed the person who blew apart fellow Bostonions freedom back to his golden palace.