In all US states except for 2, the popular vote determines who ALL the electors are from that state, so the gerrymandering does NOT have a direct impact on the result of the presidential election, or at least not very much (I believe gerrymandering can affect Maine and Nebraska electoral votes, but only a small number of them, much less than the 10% you suggest would be needed).
Gerrymandering DOES impact things like voter ID laws and other policies that can make it harder for certain people to vote, so in that way you could argue that gerrymandering indirectly affects the presidential election.
If you really want to argue that the presidential elections in the US are rigged, you should focus on voting machines I would say. But even then I think it's a stretch.
I feel like hypothetically it is a worthwhile thing to share with your friends that you and your partner have decided you want children and that the time is now. It's a big life decision, and when the time comes for myself and my partner, I will definitely want to talk with my close friends about it.
The conversation doesn't have to be about raw dogging, instead it could be about planning for children. Many people plan for children in advance of getting pergenat.