Here is a suggested revision of your thesis statement:
"Racism is a pervasive and harmful ideology that perpetuates discrimination and inequality in society, and must be actively addressed and dismantled through education, legislation, and societal change."
This revised thesis statement clearly outlines the argument that racism is a significant issue that needs to be actively tackled and provides a roadmap for how this can be achieved.
To further strengthen your argument, you could consider adding specific examples or evidence to support the claim that racism perpetuates discrimination and inequality in society. This could include statistics on disparities in education, employment, and healthcare, as well as examples of systemic racism in institutions and policies. Additionally, incorporating the perspectives of marginalized communities who are affected by racism can help provide more depth and insight into the impact of this harmful ideology. By solidifying your argument with concrete evidence and diverse viewpoints, you can make a more compelling case for the urgent need to address and dismantle racism in society.