Let Congress pass the "PR accession act", specifying that statehood must win 75% of the votes before it will be granted.
Interesting point! I didn't really think of that.
The problem is that I don't see 75% of Puerto Ricans voting for statehood. We may have to lower the threshold to 60% or 65%.
One way or another, this matter has got to be resolved for the benefit of all sides. Puerto Rico should either go their own way or be part of the United States. The commonwealth or territory status that we have doesn't seem to be working.