No, that's not at all how dog whistle rhetoric applies. Please see https://en.m.wikipedia.org/wiki/Dog-whistle_politics and particularly the section on the US.

What you're doing is, ironically, actually an attempt to shut down discussion. You're basically saying that an entire 50+ year historical record of politics in America isn't appropriate to bring up because, you claim, it might be used inappropriately to simply shut down debate.