The fact that Karl Marx grew up in a secular home tells me all I need to know about him.
How deep is the deception surrounding Karl Marx?
What earthly masters did he serve, and whom beyond?
https://archive.org/details/MarxAndSatanRichardWurmbrand1976
Not necessarily. Dislike of the Jews and their cultural aspects was the quite common attitude to Europeans from the Dark ages on.
When is the last time you read a summary of Shakespeare's famous play "The Merchant of Venice" that featured "Shylock" and his "pound of flesh" theme?
In those days a hatred of Jews by the non-Jew populace was expected from all, especially "Christians" for whom that religion was expected of a natural-born citizen, customarily baptized into it at birth obviously involuntarily, and counted to be such thereafter unless one actively refused the status.