Geographically, it is. The people of Gibraltar have as much right to self-determination as the people of Ireland. Neither the UK nor Spain has any right to tell them who should govern them. If Spain wants to grab Gibraltar, it needs to think carefully about its enclaves of Melilla and Cueta on the Moroccan coast, and Llivia in France. There's also no reason Spain should occupy the Canary Islands which are off the coast of Morocco.

Under the Treaty of Utrecht, Spain got Mallorca, Minorca and Ibiza and Britain got Gibraltar. Wanna swap?

Actually Gibraltar is not a part of Spain it is an another country in Europe though it's spoken language is Spanish.

No. The Iberian Peninsula should be composed of Portugal, Spain, Andorra, Gibraltar, and two new countries secceded from Spain: Catalonia and the Basque Country.

Yes, but it is a bit late for that.

yup

Yes, it is.

No