If they're advertising a price lock and not delivering a price lock how are they not being hit with the long arm of a government agency for false advertising?
Because both political parties have limited the power of said government to do so were replaced by the ruling capitalist class decades ago in an effort to neuter any and all attempts to even mildly curtail the nearly limitless power of unchecked capital.
FTFY
Many people like to pretend it's just the Republicans, but also nearly all of the Democratic party members (save for a few members of "the Squad" and a couple of independents like Bernie Sanders) are either members of that same ruling class (Nancy Pelosi for example - has a net worth of $120,000,000) or act on said ruling class's interests nearly exclusively (except on wedge issues that largely have no direct financial impact on capital like abortion rights, gun legislation, etc.).
This is what the non-sarcastic versions of "both sides" commenters mean when they say as such... Not that both parties are "completely equivalent in all policy regards," but that an overwhelming majority of the representatives of the U.S.'s 2 main political parties are effectively slightly different shades of the same branch grown by the oligarchs who basically get to run our country.