Of COURSE you have a say... And I would fight to the death defending your right to say it. What you do NOT have is the right, nor, obviously, the ability, to tell hispanic Americans (and black Americans, and gay Americans, and a host of other demographic groups of Americans that currently vote for the democrats) that they should vote for you, just because......
The bottom line is, the Gop really IS the party of the south and of older white folks and, whether you care to admit it or not, you all just don't LIKE wetbacks and colored folks and nancy-boys and anyone who doesn't dress like you or worship like you or think like you. You'd love to have them VOTE for your party's candidates as long as that was the extent of the required interaction..... And the thing is... THOSE PEOPLE KNOW THAT, which is why you will not be getting their vote until you change the very soul of your party. Sorry.