No.

A blue collar worker does what the boss tells him to.

A professional performs his craft in accordance with his education, training and judgement, and owes a duty to the public and the government. That duty supersedes his responsibility to his employer of the moment. He is certified, regulated and monitored by the government.

His craft requires significant judgement, and if he fails there can be serious or deadly consequences. Doctors, lawyers, civil engineers, architects, pilots, etc.

In blue collar there's always a right answer, and you can't make up your own. A professional in some circumstances may have to create a best solution in accordance with his judgement... and the regulations allow this. Doctors and lawyers do it all the time, pilots occasionally, engineers rarely.

We are professionals whose jobs have some blue-collar characteristics. Best of both worlds for the most part.