Bonnie Prince Charlie lands in Ireland?

Would this at all make a difference to his campaign? Depending on how many Irish Catholics would have supported, or how many Irish Catholics there were in Ireland at the time, would this have been a more possible starting point for the Bonnie Prince to begin his campaign, after which he would step up to Scotland and then England?
 
I suspect landing on Ireland is going to weaken the interest of English supporters, and also . . . if he lands in Ireland and then attempts to cross into Scotland, that's another sea crossing to make, which may be messed with.
 
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