Interesting how everyone gave an opinion but no one voted.
#1 for sure.
Full disclosure: I am far better at understanding the economics of bitcoin than the technology.
Why #1? Base layer transactions are only going to get larger over time. Every block is full and will be full going forward because demand has reached that threshold. Even if ordinals go away, even if ETFs get rejected, bitcoin has reached a milestone in popularity and every block will be full from now until something better comes along.
Question: Why don’t you just do a self coin-join? Combine UTXOs into an address you’ve never used before? Wouldn’t that protect your privacy?