The people you quoted (the Founders) wanted all people to assimilate, but there were a lot of walls put up for people who CAME like the Irish and the Chinese. For some people BROUGHT here it was illegal for them to assimilate: e.g. slaves. Washington, Jefferson, and Madison actually owned slaves which (who?) could not assimilate and become citizens - regardless of what those three wrote.
The people you quoted (the Founders) wanted all people to assimilate, but there were a lot of walls put up for people who CAME like the Irish and the Chinese. For some people BROUGHT here it was illegal for them to assimilate: e.g. slaves. Washington, Jefferson, and Madison actually owned slaves which (who?) could not assimilate and become citizens - regardless of what those three wrote.