I believe George Washington, during the Revolutionary War, had some soldiers in the Continental Army executed for sodomy. Of course that was before he was President, but that seems a lot more "homophobic" than anything Trump has ever said or done.
I don't think that President Trump has ever said a single thing that could be considered homophobic during or before his presidency. He got along with everyone except a few corrupt NY pols before he ran for president.
I found no 'executions' when I googled this: https://www.google.com/search?q=George+Washington,+during+the+Revolutionary+War,+had+some+soldiers+in+the+Continental+Army+executed+for+sodomy.&ie=&oe=