... just sticking your toes in the water will somehow ever help you cross the English Channel, ...
Just doesn't, but you cannot cross the Channel without sticking your toes in it at all. I mean, unless you fly or take a boat or the Chunnel ... but if you're a good swimmer, it's free.
I'm looking at things like this through the lens of: There are people who want to start doing something. This is something. It's a start, for someone, maybe a lot - not an end.
I do think you were attempting to undermine my point with your whataboutism as if the state of my participation would somehow have any material impact on the substance of my argument,
I meant that as pointing out that not every effort is suitable for every person. People have to make their own decisions about what risks they are willing to take on, and I think that even a risk that's closer to inconvenience is better than nothing at all, that it can be the start of something more. More people, more efforts, over more time is the only chance of effecting real change.
We're probably on the same page that this particular thing for one day is going to have a very limited impact towards ousting fascism from the US or anywhere. Today isn't the end, and a lot of people have to start small. Let them start.