To,

is a preposition with several meanings, including “toward” and “until.”

Too,

is an adverb that can mean “excessively” or “also.”

two,

is pronounced the same as to and too, but is a number.

My intended use of the word "to" was to indicate moving towards the state of being, "weak", "poor" or "resistant".

As "excessively or also" was never my intentions, I thought it best not to use the spelling "too".

If my posts offend your delicate sensibilities, I suggest you not read them.