These people are always going to be there. Just like the unsure, underconfident, second guess everything they know trainers. If you aren’t being affected by their inflated ego then there is no problem. However, since you brought this question up, I’m guessing it is affecting you. Just don’t stroke their ego, slander them, or take ANY abuse from them. I don’t compete with these people (on any level)because they tend to be poor sports, so, I don’t help them either. I only aide those I become stronger from interacting with.