Refer to:

With some persuasively arguing that 'territory' is an outmoded concept with all already conquered and resource extraction moving into virtual domains, into space, into bio-manipulation, is belonging also requiring a redefinition.

It definitely has problematic connotations that lead to violence.

Politics and Intersectionality

hooks, bell. Belonging: A Culture of Place. New York: Routledge, 2009.

There are some reflections on belonging in:

Monbiot, George. Out of the Wreckage: A New Politics for an Age of Crisis. London: Verso, 2017.

More-than-Human Belonging

Wright, Sarah. ‘More-Than-Human, Emergent Belongings: A Weak Theory Approach’. Progress in Human Geography 39, no. 4 (2015): 391–411.

Poe, Melissa R., Joyce LeCompte, Rebecca McLain, and Patrick Hurley. ‘Urban Foraging and the Relational Ecologies of Belonging’. Social & Cultural Geography 15, no. 8 (2014): 901–19.