Stop making this about anybody's character. This is about due process and what passes as evidence.
Republicans control the narrative here and have already painted him as a gang member. No amount of opposition to this point from the Democrats will convince Republicans otherwise.
When Democrats try to counter by pointing to Garcia's positive character traits, they are preaching to the choir. Whether you believe his a "gang banger" or a "family man" is irrelevant because the Republicans have the stage.
We need to demand evidence of all claims made by those in power... we need to do this relentlessly towards both sides. Do not accept any statement without evidence, and refuse to move on to a different point until the requirement for evidence has been satisfied.
When they say, "Garcia is an MS-13 terrorist," we need to say, "What do you offer as proof?" and keep asking until they provide said proof, concede defeat, or resort to force towards their questioners. Like it or not, we need to do the same for Democrat's claims that he is a "family man". You will not win a propaganda war against the party that controls all branches of government.
Repeat a lie often enough, it becomes the truth. Yes, but ask a question often enough, it becomes unavoidable.
These cultists are trying to ride the 80 year old wave created by the atom bomb.