Every politically charged term ends up having highly disputed definitions, but I think most of those will acknowledge that the term has way more baggage than just the idea of taking care of yourselves and neighbors.

From Wikipedia:

Socialism is an economic and political philosophy encompassing diverse economic and social systems[1] characterised by social ownership of the means of production,[2] as opposed to private ownership.[3][4][5] It describes the economic, political, and social theories and movements associated with the implementation of such systems.

It represents a whole set of beliefs about how the world works, in addition to political goals. Someone might broadly agree with the idea that people should be taken care of, but have strong objections about the specifics. One of those beliefs that I'll object to is the idea that just about everything should be understood as being about class conflict; I don't think that's always accurate.