Future of the political parties in America

Recently the Democratic and Republican parties have seemingly gone under a massive transition. They both integrated more populist aspects into their parties and were torn apart between the old center and the new younger radical. This division took place for the GOP under the Obama years when the party was forced under and the old Country Club Republicans ultimately lost influence to the younger and more populist TEA party faction. Trump embodies this new party that is more socially conservative, brash, and at least outwardly seems like a party of the people. He's taken a hard stance on immigration, rolling back minority rights, and weakening the federal government. Compare this to George H. W. Bush who realized the importance of legal immigration and the importance of the federal government.
Today another similar shift is happening within the Democratic party. Much of the old guard like Nancy Pelosi, Obama, and Joe Biden who are much more centrist in their beliefs and even willing to reach across the aisle is now losing influence to a new generation of Democrats. These Democratic Socialists are people like Alexandria Acasio Cortez and Bernie Sanders who stand for much more liberal if not even socialist views on healthcare, higher education, environmental policy, and welfare. 
Although personally, I do agree that there is a need for reform I believe that such political division within our country is not good. The inability to come to bipartisan agreements has become more and more frequent and can be quite disrupting. People are left as the collateral when the government shuts down because Congress couldn't agree on something. Today sectionalism is extremely high between the coastal population centers which are primarily blue and the rural middle of our country which is extremely red. If America is unable to reach a more practical return to center the shocks of such a polarized system will be more far-reaching than just a government shutdown. The inability to place another chief justice on the supreme court without a huge political scandal shows that the wheels of our democratic system are under threat because of our polarization. We are all Americans and all want the best for our country so we should act accordingly and not put party ahead of state.