Ethereum, Polygon, Cardano and various others incorporate ZK-proofs, and have covered rollups in general in at least two pieces in recent months.

"Why not invest in the actual infrastructure?"

I do place emphasis on focusing on reputable L1s (+ Bitcoin), sidechains such as Polygon PoS and L2s, and have spoken about these in several articles.

As per your s**tcoins claim, well, that's up to people to decide whether they choose to invest in these.

I made this point very clear in the article too.

For perspective, all of these altcoins (combined) account for less than 5% of my crypto portfolio, and these should also be a very small component of your portfolio as well IF you choose to buy any of these.

Thank you for your feedback.

Regards,

Lorenzo