All I can say, with my little knowledge of the island:
Why do the locals moan about the over-tourism.?
Who am I to say what is right or wrong for a place I visit just a few weeks a year?
Is it good to see the tourism business growing that fast in an ended territory?
Same population density of a country with towns like Berlin, Munich, Frankfurt, does it sound like ibiza?(with much more water)
You, and all the people who are looking at ibiza just like an hedonistic place, the capital of the techno world, you, are killing the place and the vibe.
Let the people who are living there all year round decide or not what is good or not for them and for them land.