I sympathise with your point. The same thoughts go through my mind, and at times it leaves me conflicted. I am a man of a higher civilisation, and I ought to adhere to the expectations that this raises; in particular, I should be altruistic towards my surroundings, the environment, my neighbours, etc.
Yet, this has become so frustratingly futile in the modern world. The nihilism is gaining ground in my mind. Why would I help my neighbours if half of them are Ethiopians and Moroccons that would stab me in the neck if they could? Why would I put in all that effort to help the environment when it's not going to make a difference anymore? Especially (and this is important) because I know that I will merely get horseshit in return. I'm surrounded by White-hating globalists. Future people will spit on my grave and all my efforts will be forgotten. If you are a White ethno-nationalist, you are on the wrong side of history, not in the sense of actually being ethically wrong (it's not) but in the sense that the history books will portray you as such.