They would be falling all over themselves to disprove it. Absolutely.
But they can't.
But hey, a couple of extreme outlier you tubes can be real convincing.
Btw, although we're the only ones to put men on the moon, there are other countries that have had "soft landings"
There are multiple countries with flags now planted on the moon.
5 of our 6 flags are still standing.
China, Japan, USSR and the European Space Agency all have flags up there via unmanned landings.
Eventually they will all be dust though.