As yes the excellent "everyone who doesn't buy crypto is an idiot an leaves all their assets as cash sitting in the bank earning practically no interest" argument. It's a ridiculous argument, but especially so when you factor in that it's being made on a trading forum. If only there were financial instruments people could buy like stocks and bonds. Maybe there could even be a forum where we could discuss the topic.
The inflation argument is similarly hilarious. 5% oh my God! I couldn't possibly buy bonds that make more than that or a stock index that as a historical average returns about double that! The only way I could possibly protect myself to to buy a fraction of NOTHING since the price of that "coin" isn't even a proper inflation hedge as measured by performance to date.
And finally you have the whole "they'll never get my Bitcoin" argument, as if a government would not just arrest you personally and hold you in contempt until you turn over your keys. But don't worry, crypto owners are all Jason Bourne reincarnated and have boxes full of passports, safehouses, travel plans, etc. Plus if they are blacklisted, everyone else is going to be perfectly willing to wind up on a blacklist themselves just to help you.