Not really. The Democrats are aware of the effect but if they lose they basically just go back to the drawing board. They actively benefit from a lack of knowledge of the FPTP drawbacks so they don’t bring it up unless things get dire enough to tip their hand. They have been squirrelly about letting that understanding flourish so they have been putting forward a sacrificial lamb in the form of the Electoral College to keep people’s eye off the prize.

But unless you get a once in a lifetime knife edge minority government third parties tend to be unstable voting blocks who don’t have the ability to influence schedules which is where the real power lies. They might vote their hearts but it doesn’t matter if they can’t even propose time on the floor for their issues.

From the standpoint of the beneficiaries of the spoiler effect you are a sacrifice that is useful because if we are having this conversation then we aren’t talking about more threatening things lile election reform.