Monero has a free and open market for transactions fees as well, dummy. The only difference is you have an arbitrary fixed blocksize (fun fact: Monero blocksize is smaller than Bitcoin atm ~0.3 MB). With more adoption your transaction fees are going to price out 99% of the world from being sovereign on chain. Monero has less annual inflation than gold chill out.
1. Choose the better p2p electronic cash (read the title of the whitepaper): Monero
2. Coinjoins don't give you privacy it's obfuscation; nothing is hidden. Liquid (trash privacy and custodial - only hides amounts and virtually zero anon set), Cashu and Fedimint are really good privacy but custodial (you love your intermediaries huh?)
3. Yes, use second layer solutions and give up your permissionlessness or custody. Great solutions for Bitcoin 🤪
If you are Monero-shy you can continue saving with Bitcoin and just use Monero for transactions where you can. So even if you believe everything he said it has no effect on you.