Who exacerbated it for political gain? Customs has a well defined roll as does the Border Patrol. Drugs is just one of the many problems being dealt with at the border. These people are coming here, for the most part, without the skills, or knowledge to survive in a first world country. There needs to be a major clamp down on the numbers allowed in or processed into the country.
This whole debacle is designed by the major political party, who's emblem is a mule/donkey to enhance their ability to win elections and to "rebuild the country," in their image.
Your sources are suspect in that they are all left leaning.
Trump.
He didn't solve the problem, just made it more public. His numbers did not reflect improvement and the problem had been going down since 2005. We used to have a million a year till then.
We should all be on the bandwagon to get the problem solved. We aren't and just like the national debt you have a good reason why its not important enough to you.