National Review canned Ann Coulter years ago over some typically outrageous comment she made that riled the liberal media. She called the people running NR "girly men" at the time. It still seems apt.
In an odd way, their criticism might help Trump. He is attracting democrats and independents in numbers no republican since Reagan has managed. Having Glenn Beck criticizing you is not going to hurt that process. Frankly, no one has heard of any of these guys outside of the Capital Beltway and inside it, they have no swing at all.
They seem to think the country is yearning to start more pointless wars and bring in more immigrants. Oh I forgot, Trump wasn't on board with this or that issue, eg abortion. WTF have these guys accomplished with all their columns? We have gay marriage, abortion on demand paid for by the government, hundreds of millions going to Planned Parenthood, muslims being the fastest growing religion, kids can't even show a Bible at school, etc etc. Yet Trump is the problem? Sheesh.