I think one angle the parent may have intended is that immigration increases labour supply and thus depresses wages. This argument ignores the fact that immigration generally grows an economy and in many countries it's a critical driver. This goes doubly for highly skilled immigration - particularly in the tech industry. I've worked with extremely talented folks who'd come to the US from all over the world, raising the bar at the world's top tech companies. Anyone who's worked in these companies will tell you that it's the quality bar that's the biggest constraint on hiring. SV is a concentrator of technical talent - one of the reasons the ecosystem works so well (the other is access to capital).

Beyond that, I'd find it surprising that progressive policy should depress wages - conservative economic stance typically weighs in favour of Capital.

The ultimate irony of the parent post is that the values he strongly identifies with are those that thwart his dearest wish. Emblematic of the human condition?