I never said Yoda doubted their existence, just their purpose for existence. The theory idea is just something I came up with to rationalize the midichlorian thing. It may be refuted in Ep2 and 3, but until then I'll stick to it.Yoda never expressed any doubt whatsoever in the existence of them. He only expressed doubt that Anakin might be the "chosen one." Yoda's Midi count was even a part of public record.
I can honestly say right now that I do not have enough information on the midichlorians to form an opinion on them. I don't want to judge anybody who decides to hate them or love them; but I prefer people don't judge me for tolerating them. If you hate them that much that's fine, it's your opinion; but that doesn't mean it's the right opinion. Let others share their views and respect those opinions, as you would expect us to respect yours. If your only argument is, "well I hate them so everyone else should," then you'll quickly find that you're arguing only with yourself. Because everyone else has stopped listening.