That is fair about Lego Marvel 2, I had no idea the Inhumans were in that, but other than that the only game the Inhumans are in is Future Fight, and so are the X-men, and so are literally everyone else but FF, the cast is massive. But in toys and most games I admit the x-men/FF were demphasized, and that had nothing to do with the Inhumans. Would've happened regardless.
In the comics there is no evidence of de-emphasis (even during the heyday of paranoia most x-fans would just say "its coming", but it never did.)
The huge issue with this Inhuman hate campaign you've all led is you've never been able to prove that the without the Inhumans getting a couple books this alleged de-emphasis wouldn't have happened. The truth is the Inhumans were not part of the cause of the de-emphasis at all. If it happened (and I think it did outside comics) it would happen regardless of what was happening with any other franchise cause Marvel just knew it wasn't making them money.