Pooh, players using the vote-kick option is not abusing the vote-kick option. The entire aim of the vote-kick is to give players agency over who they would like in their group, and yes, players can chose to initiate a vote to remove anyone from the group, as long as the majority of the group passes. That is not abusing the vote-kick system.
Relevant sources:
Groups are empowered to manage their own members through the vote-kick system. If the majority of the group feels a player should be removed, they can initiate a vote-kick to remove them. The system is entirely under the control of our players. Players may choose to remove any other player from the group for any reason, provided the vote to kick passes.
Source: Kicked from Group for No Reason support article.
So, no, it is not abuse initiating a vote-kick, let alone, if the group agrees with removing another player from the group using the vote-kick system.