I agree with your assertion that Trump needs to focus on Hillary. She presents a target rich environment.
And who pray tell is going to cover Trump’s flanks as he is backstabbed by the GOP & pounded by the MSM? This is all about bullying Trump into not responding to GOPe and MSM attacks. That will give them free reign to destroy him.
Assign others to refute and attack the MSM and Pseudo- Republicans Trumps children seem up to the task. People genuinely liked his son. Trump must focus on Hillary and bring out her bad character point by point.