"[F]acists" and "concentration camps" are intentionally incendiary and do not promote a constructive discussion. There is nothing reasonable about that wording at all.
It's not intentionally incendiary when it's largely true.
These are descriptive terms for what currently exist in the US (and have existed before in the US). If hearing them causes you to feel emotions that don’t allow you to engage in civil discussion I think it’s worth investigating why that is —- not insisting we find less precise terminology.