>Abstract concepts such as a social class cant do anything…

Yes they can. They do all the time. Let's open a random news article from, uh, say the guardian. Let's look at the title of the first featured international news article:

>Russia-Ukraine war live news: Ukraine fears Russia planning false flag attack amid Kremlin’s ‘dirty bomb’ claims

Neither Ukraine which apparently "fears" nor Russia which apparently is feared to be planning a false flag attack are people. It's an abstraction of multiple different people doing and thinking often conflicting things but summing up to a specific overall direction.