It's the people you support (Chinese miners and Rogers) that stalled the block size increase that segwit provide along with multiple added benefit also improving scaling.
That's the small-blocker narrative. The big-blocker narrative is that the current core-heads have been stilling any kind of block size increase consistently and particularly since 2015.
The moderate narrative is that we'd had both bigger blocks and SegWit already in 2016 had only the Hong Kong roundtable agreement been respected.