> If the Democrats win the election this year, I think Google and Facebook both stand serious chances of looking at antitrust cases.

I think there is a serious chance, no matter who wins the election. The tech companies have pulled off the difficult feat of allying both parties against them. Democrats, in addition to their historical opposition to big business, blame them for the spread of misinformation that allowed Trump to get elected, and Republicans blame them for censoring Republican opinion. The fact that these companies have very outspoken employees who publicly oppose conservatives (see Kay James) does not help.

In the past, big business could rely on Republicans to shield them. However, for the most part, big tech entered the culture wars opposing Republicans, and I think a lot of Republicans will happily support their breakup.