My thoughts on certain topics often get marginalized here on GAF and elsewhere, due solely to my gender and the color of my skin. This happens even when I've made no use of my personal experiences as evidence for my points, thus making my (lack of) experiences irrelevant to the topic. I am often ascribed motives I do not have (oppression of women, maintaining my privilege, etc.) and my thoughts belittled because of those false motives. I am sometimes told I have no right to speak on certain things.
That being said, while speech and the freedom to express ideas is a core part of the human experience, the racist dismissal I experience on an internet forum is merely a small fraction of the frustration and/ suffering felt by those afflicted by institutionalized racism. I don't feel a need for sweeping social change to fix my plights on the internet, like I feel we need sweeping social change to address the plights of minorities.
But to answer your question, yes, it exists, and just because other people have it far, far worse does not mean that we should ourselves practice the relatively-insignificant racist behaviors.
You do realize that your posts sounds like a passive aggressive rant from an ignorant person who has a lot of opinions that are flat out offensive to a lot of people?
Your issue might be your opinions and ignorance, while being in a privileged position, in that case instead of explicitly your gender and color of your skin. Kinda like when people are against gay marriage, and then say that people are infringing on their religious freedom when people get angry at them.