No.
He should give a rally. Thousands of would show up to hear him speak. The British press and elite leadership would fume with anger! Parliament and the UK media may not like him but undoubtedly there's plenty of regular Joes who voted for Brexit and were happy to see him win election.
Keep in mind, the same anger at the ruling class that propelled Trump to victory over here exists over there as well.
I really, really like that idea. But I'm concerned that the uniparty over there would be unable/unwilling to provide proper security. And we still don't know, BTW, if Whitehall had a hand in the dirty dossier. I think Trump should just cancel the visit for now.