People in blue cities do it all the time. They vote for high homelessness, high crime, high cost of living, no wonder people are leaving these big cities.
People in "blue cities" don't vote for ANY of these things because NONE of this stuff is on ANY municipal ballot anywhere. Municipal governments have very limited control over economic measures. They are not allowed to run budget deficits, and are at the mercy of larger economic factors over which they have no control.
The job of municipal government is to manage the municipal infrastructure: pick up the garbage, issue building permits and inspect construction, run public transit, ensure an adequate supply of water, electrical power, and other energy sources to meet public demand. They also run police and fire services to protect the city and its citizens, and the public school system through a locally elected School Board.
Municipal governments can decide how much parkland will be set aside in a neighbourhood, but they have no say in the cost of living, and the only thing they can do about "homelessness" is to provide housing for displaced people. These are not issues that municipal governments have any control over. These are issues inflicted on municipalities by state and federal policies, and which the cities have virtually no legislative tools to deal with.
Detroit is an often cited example of Democrats' corruption and incompetence destroying a once great city. But that's mostly fiction. What destroyed Detroit was the loss of the tax base when the Big Three Automotive Companies moved their manfacturing to Mexico. The formerly well paid auto workers were unemployed and broke. They weren't going to bars or restaurants, or buying new clothes in the local stores. So the bars and the restaurants and the stores closed because they had no customers and this further reduced the tax base. No local sales or VAT's were collected further reducing taxes. Crime went up because of lack of job opportunities, and a very weak social safety net. Drugs and crime flourished, because they're they "diseases of despair".
Yes, there was a lot of corruption in municipal politics in Detroit. But there is a lot of corruption in municipal politics in Republican controlled cities too. Municipal officials and politicians are far more easily corruptible than those higher up because they make the least amount of money, and they control the levers of power for millionaires and billionaires within their jurisdictions. You need your zoning variance approved to building that multi-million dollar shopping mall??? Some guy making government wages is in charge of that approval. Much more bribeable than your local Senator, or Governor. Municipal corruption is a bi-partisan problem.
The very same thing also happened in mid-western cities controlled by Republicans. Opioid deaths, alcoholism and crime are flourishing in red cities where auto plants moved to Mexico. Right wing media paints this as a "blue cities are hell holes" thing, but conservative dogma is really really bad at the nuts and bolts needs of running a city.
Cutting taxes, and mantras about "personal responsibility" do little for the root causes of homelessness, which are often related to mental illness, or abuse and trauma. High crime rates are tied to poverty and a lack of opportunity. Rural midwestern areas are now facing high crime rates and deaths due to opioid addiction and alcoholism. The same diseases of desperation that destroyed the inner cities in the 1980's.