Earlier quoted context omitted.
It becomes illegal and election interference when that Corp is a monopoly with effective control of speech and discovery on the internet. No law entitles Google to gaslight America and interfere with democracy.
Under what law?
Political activity by companies is regulated. A petroleum company cannot offer in-kind donations of "unlimited" gas to a candidate, without flouting FEC campaign contribution and electioneering laws. Likewise, Google cannot artificially prop-up, or suppress a candidate without breaking FEC regulations