I think you mean "you're" ...as in "you are".  And, yes, it does matter.  I am curious as to whether you wipe your ass after taking a dump.  By your same logic, isn't wiping your ass unimportant?  I mean, you're just going to take another dump tomorrow anyway, right?  So what's the point?  Smelling like crusty poop is not too different than writing like a nitwit too lazy to think about which word to use.
The scary part is, you get to vote.  No wonder this country is going to crap.  Never a shortage of imbeciles who believe their opinion is worth as much as those who actually spend at least a tiny bit of time and effort to TRY rather than whine about being offended.