"Power of 10" TV Show Question - America Still Around in 100 years?

I happened to come across the new TV show "Power of 10" being hosted by Drew Carey on Sept 4, 2007 (Tuesday) and this question struck me as quite worrisome.

The question they asked Americans (now did they actually ask at the beginning of the phone poll to each person if they are a US citizen or not?) is if they thought that the US will still be around as a NATION in 100 years.

Only 74% of those who were polled answered yes. I thought it would be around 85% (The audience and contestant both got it wrong. The contestant missed out on $100,000 by picking the wrong percentage range.)

Now this is very worrisome if 1/4 of the people think the nation we know today will be gone. If they think it will be gone then they will likely NOT do anything to prevent it at all.

Only 2% of the TOTAL population of the 13 original colonies actually fought (combined from BOTH sides) during the Revolutionary War - which allowed our nation to be created. 80% of the people living from 1775 thru 1783 never took sides and tried to stay out of it. (After the war some 50,000 Tories moved to Canada due to persecution of their loyalty to the King.)

If the same holds true for modern times - then a very small minority (US Citizens or not) could effectively fragment the USA and destroy it.

If the foreign minority does not assimilate into the US culture - and remain unique to their foreign morals and allegiance while being able to vote in the US - then they could effectively vote in a block and change laws, rules, and other ways that the US is run to effectively become a separate nation.

As an extreme example: if all the Mexican/Spanish people living in California voted that all state law enforcement personnel CANNOT be used to enforce any Federal law and only enforce California STATE laws - what could the Federal Government actually do? If they decided that a Free Trade Zone between California and Mexico exists and bypass US Customs what would the Federal Government actually do?

If the Federal Government threatened to cut off Federal Funding then California could then stop sending ANY money to the same Federal Government and they would actually have MORE money. What could the US Government do? Invade California?

All of this is possible if the Spanish majority in California voted as a block.