Again, unless you have more statistics that's not telling you anything about the demographic of the Republican convention on its own. It's making the assumption that all conventions bring the same crowds by percentage. Republican conventions bring a uniquely larger crowd in the form of protests. Much larger than a Democrat convention (well, before the genocide).

Also, major cities have multiple conventions and events every weekend. Likely enough that the population related to any given Republican convention would likely only be a fraction of the total. Even for events as large as their Major ones like CPAC, etc.

I know many LGBTQ organizations align their events WITH the Republican conventions to bring in more support for protest.

So, again, there is just not enough statistics on it to conclude anything. Sorry, this really doesn't matter. Republicans are still hypocrites and assholes. But my math autism just hates bad conclusions from insufficient statistics.