The culture of any organization is shaped by the worst behavior the leader is willing to tolerate.
When toxic employees' negative behaviors are tolerated, it can have a hugely detrimental effect on the company's culture, decrease collaboration between teams, affect how customers are treated, and so much more.
People in leadership positions will often look for a quick fix, but it’s not that simple. It’s easy to blame the hiring process or one individual employee, but unfortunately, the buck stops with you as the person who sits in the leadership position. You need to take full responsibility for the low morale of your department or organization and urgently address the situation before all the good employees leave and the toxic remains.