// 1) Google the Drake Equation, which next to proves that the mathematical probability of intelligent life elsewhere in the universe is so high that the idea that there isn't really isn't worth considering. //
If you'd google the Drake equation then you'd realise that it does no such thing. It merely quantifies the nature of the problem, ie sets up (at least some of) the questions that will need answering in order to ascertain the probability of alien life. There isn't a single one of the parameters in the Drake equation that is known well enough to in any sense "prove" anything.
This isn't to say that there is no alien life, or even that there isn't lots of it, but there is certainly no "proof" to be found, one way or the other, in the Drake Equation.