In the date that you mentioned, 1775, America was inhabited by indigenous people. Where are they now? Your question can a Palestinian nation come into being can be answered in only one way. Not by war! Israel Forever. G-d bless his people with peace.
U.S. sanctions Russia's state-owned arms exporter Rosoboronexport (Reuters)
from the article: Netanyahu to U.S.: Palestinian demands may delay peace talks again