No. I think unions are nothing more than organized thugs and originally did much to help the work force in America but these days are the biggest reason the country is going down the tubes.
The going down the tubes you're referring to is that fact that our unions are losing what they gained (that 'much to help the work force' you refer to) to foreign work forces because those workers are forced to work under conditions that existed prior to when our labor unions, in the past,
won their battles to get rid of those conditions.
The country is not going down the tubes from the conservative perspective. It is merely going to where conservatives want it to go...
...to being a place where the mass of the working class works at low wages, with few benefits, and little job security,
where corporations/employers are the supreme authority over workers, to the detriment of workers' rights, protections, and privileges,
and to where the government is generally aligned as an ally to business/corporate/employer/ownership interests, to the detriment of wage earners, workers, labor, etc.