Oh please. Posts from /r/conservative show up in /r/popular all the time, and it remains a hotbed of conspiracy theorists, grifters, and old fashioned racists.
The ratio is what matters. Easily 95%+ of r/all is far-left content, typically with "rage-bait" headlines that fail to expose the nuance of the situation.
This can't be healthy, for two reasons:
(1) The health of the company. As an investor in RDDT, I am not a fan of the site's landing page alienating 50% of Americans right off the bat.
(2) The health of public discourse. We should all be against the creation of echo chambers and weaponization of headlines.