We should immediately reject anything blockstream proposes due to their conflict of interest selling sidechains, a market created by throttling L1 capacity of bitcoin.
I don't think so. A company can do something you don't like, while still doing other good stuff.
Who do you believe is throttling L1 capacity of Bitcoin? Because if anything, L1 capacity was increased with SegWit. There's just so much data that can fit into a block; which is why different L2 technologies started emerging a few years ago. But it's not the other way round.