Totally. It is Russia's responsibility not to accidentally or knowingly meddle with an election, not Facebook's. I guess there is one last question, what was Zuckerberg doing in a congressional hearing?
For example, if a drunk person behind the wheel of a Ford does a tremendous amount of damaage, no one goes after Ford for not preventing it.
Facebook is a tool. Is it Facebook's responsibility to make sure that everyone uses it ethically? I can understand putting in measures to make sure that everyone is using it legally and have a mechanism to help authorities stop bad actors but deciding what a "bad actor" is shouldn't Facebook's responsibility.
Given your analogy, the question is, is Facebook more like a car manufacturer or a newspaper?
If a car manufacturer distributes a car that did not go through any inspections and it turns out the brake lines were hooked up incorrectly and consequently causes damage or hurts the customer then it's neither the customer or the dealership who are at fault, but the manufacturer for failing to properly inspect the product that they are making.
In the same sense, if a bar sells beer to someone without asking for their ID and they turn out to be underage, or a gun store sells a weapon to a convicted felon without performing a background check, liability falls on the company and not the customer.
I am not sure if this should apply to newspapers in respect to their advertising, but there are examples where this line of thinking does apply and this might be one of them.
I'm not saying that there weren't campaigns that intentionally mislead people or that those campaigns aren't a bad thing. I do think that blaming the Trump Presidency on the Russians is overly simplistic and is an easy way to ignore a real divide in our country.
Facebook put in a "vetting" process and requires everyone to go through it to publish ads. On the other hand, anyone with enough cash can buy a Ford (even second hand from a 3rd party), get drunk, and drive through a few neighborhoods causing death and destruction.
The correct analogy is having a secretory that reads all your emails and only selectively lets you know what you got as well as inserting recommendations based on her belief system. So if this secretory tells you that your brother only sends you bad emails and here's the great model of gun you should buy if you are going to meet him - then your secretory is not merely a tool to manage your emails.