[Klaus]

Of course, you are technically right that DSLR lenses are cheaper but it remains completely irrelevant in the mirrorless-centric discussion.

You can argue with performance and whether we are "allowed" to do comparisons - the market will decide in the end anyway.
In Japan they decided in the meantime as we now know - we'll see about other regions soon I reckon.

An A7 II with 28-70mm costs about half of the EOS RP kit with the 24-105L or the Nikon Z6 with 24-70mm. That tells a story.

Sure, an unfair comparison. Sony will not care about old school lens designs (and correspondingly low price tags) as long as they own the vast majority of the market share.
We all know that a manufacturer owns your balls once you bought into their system and Sony owns many balls by now. CaNikon is to Sony in mirrorless cams what Pentasx is to CaNikon in DSLRs.