What's a scientific illusion? You're saying that if a scientist does an experiment that the results of that are not only subjective, but now also an illusion? Science. Is. Fact. There is no other way to explain that. If two elements combine to make a compound, that's fact. It's in no way subjective. The periodic table is the result of decades of painstaking research and is based on facts. Gravity is not subjective. Electricity is not subjective. There is nothing LESS subjective than cold, hard science.
Oh, and to resort to insults and namecalling just shows you realise you're losing the argument. Way to win friends and supporters for what appears to be your first post pal!