This is a common debate tactic from Trump supporters and it just doesn't work. If your evidence for Trump being okay is that he's actually a liar so we shouldn't take threats seriously, that doesn't speak well on Trump. And, actually, it reflects very poorly on you. Why are you supporting someone who you knowingly admit is a liar? Why is your support founded on the assumption that what you're supporting will not be implemented? It makes no sense. It makes other's question your decision making abilities.
But, more to the point, much of what Trump has said and done has been downplayed until it actually happens. We can't just play pretend and cosplay Hellen Keller here. The insurrection, project 2025, these things are real and did actually happen. Despite being downplayed repeatedly. I mean, every Trump supporter on Earth has been calling Project 2025 anti-republican propaganda (but it's written by and for republican leadership?), and now that many part of it are being implemented verbatim - surprise! - it's what everyone wanted all along.
We cannot continue to downplay and underestimate this administration. They will do illegal things, they will threaten democracy, they will ignore court orders. If we cannot comes to terms with that reality, then we have no choice but to allow them to do these things.
Well given the ratio between what he says he would do and what he actually does I would not be much worried if I lived in US.