When you see campaign contributions listed "from" Alphabet, that money is actually all coming from individuals.
Employees of Alphabet who give more than $200 are required to list their employer on the donation form. The campaigns then submit that data to the FEC, which makes it public, which is where OpenSecrets gets it. So even if the Google janitor gives $250 to Clinton, OpenSecrets will list that as coming "from" Alphabet.
OpenSecrets also shows money that went to candidates from political action committees (PACs). But any money that passes through a PAC to a candidate must originate from an individual as well. The corporation can only pay administrative fees, like providing an office and Internet connection.
You may note that I said to avoid voting for candidates with a LARGE amount of contribution from Google. Because this isn't about $250, but, for instance, about the $58,000 Googlers have given to Ro Khanna, which pretty much ensures Ro would never vote against Google's interests if elected.
This is funny considering you think "donations" from Google don't have an agenda.
Lets call it what they are without double speak - a fucking bribe.
Therefore, your best bet is to get regulations against Google by electing people paid by someone else, then later get regulations against that someone else by electing people paid by someone entirely different. It's a juggling act of corruption!
While the electorate is bickering over distractions like this cycle you are correct. However, limiting special interest influence strikes me as a non-partisan issue, so if the citizens spoke up I think they'd have sufficient influence.. But, then maybe I'm being an idealist. Regardless, your short term solution works.
Don't get me wrong, your logic is correct. But, in order for politicians to play the game they need large donors like Google. So, if they don't take money from Google they'll just take it from someone else with an agenda. The real solution is to vote for candidates pushing for campaign finance reform (reading Lawrence Lessig may be insightful)