Quote: I don't have to provide a viable alternative to any scientific theory,
law or similar; that kind of burden of proof is not on me.
If you are prepared to make a claim, then yes it is.
Quote: Intuition and insight breed theories.
As I have said, Experimentation is the only thing that breeds theories. It takes insight to create those experiments, but little is left to the imagination at that point.
Quote: Whether unfounded or not, theories are still widely put into practice today.
Scientific theories are never unfounded. Gravity, Evolution, and the Big Bang are all theories, and all heavily supported by fact.
We have a set scientific method for a reason, because it works almost universally.