If you're going to regurgitate information from the internet, please try to be a little more discerning of the information.
Toxo is a RISK factor for schizophrenia amongst about 30 other risk factors, environmental, genetics, childhood experiences, resistance, stress, medications, socioeconomic and geographic factors and so on. This is not the same as saying it "causes" it.
It is affected by how dopamine is released in the body and many things can affect this process as well.
Scary and sad to think that the tunnel vision you have about parasites being the cause of all the ails of humankind may stop you from solving your problems.