If the Americas didn't exist, where would the Irish leave to?

Maybe if Spain and Portugal unifies earlier and more solidly, they can push a quicker and wider conquest of the Americas from Canada to Argentina leaving no room for other European nations to settle there, so no English or Irish can even travel there.

In this case, maybe England enforces a more advnaced exploration and colonization of Africa, and Irish can settle there (in an Afrikaans-like fashion)?
 
Top