Exactly. Very few Americans are out there actively "promoting the myth" right now that aren't ideologically aligned with the current Republican administration. That's a distinct (if significant) minority.

Also, while I believe more Americans should be protesting, people in other countries (like myself, at one point) may have an inaccurate idea about what heavy US protest "ought to" look like in the media they see.

We'd love to be protesting at the iconic White House and federal Capitol building, creating horizon-to-horizon crowds for the rest of the world to marvel at... But for me (and ~40% of the population) that's a 3500-3700 km trip. How often would you expect someone in Portugal to travel the distance to Moscow for a day of protest? (Worse, assume no good trains.)

Instead, we gather at local state locations, which will typically not get shown (or recognized) internationally, except when folded into a sentence about how "millions protested across the nation."