The only one Trump said wasn't a hero and called a failure for being captured was the traitor John McCain, who aided the Viet Cong after he was captured by taping a statement denouncing the U.S.
As far as calling the military suckers and losers, this is from a story by The Atlantic which cited "anonymous sources", though none of these sources were ever identified or willing to go on the record. This has been debunked many times by many people, including the Sec. of State and the French Ambassador, who were there at the time, that this never happened. Even John Bolton, who hates Trump, wrote in his book that this was BS.
For someone who you say doesn't like the military, Trump sure did an awful lot to help them.
Trump signed The Veterans Affairs accountability legislation, “to allow senior officials in the VA to fire failing employees and establishes safeguards to protect whistleblowers.” This improved VA services.
Trump implemented the Veterans Choice health care program allowing vets to use regular doctors and hospitals and not have to drive to a VA.
In 2018 he gave the military the biggest pay raise in decades. The next year he gave them another pay raise.
Trump went to Afghanistan on Thanksgiving to be with the troops. Not like Biden who spent his Thanksgiving at a billionaire donors house on Nantucket.
Trump forgave all student loans for disabled vets.
Trump or Pence met every plane returning with the remains of every solder killed in action overseas. Trump personally called every family of a soldier killed in action. Obama didn't do that.
Trump withdrew large numbers of troops from Syria, Afghanistan, Iraq, and Europe. He brought home over 60,000 troops in his four years.
He forced NATO countries to spend more on their military so he could reduce U.S. troops deployed.
Trump pushed for and signed two Bills -- The Veterans Benefits and Transition Act and the Forever GI Bill Housing Payment Fulfillment Act -- that work together to guarantee payment of housing and schooling costs for military veteran students.
He established the world's first Space Force.
He increased the military budget every year he was in office.
Sorry, I don't buy your whole premise, especially since soldiers and Vets seem to love Trump.