This is the type of thing where you could do a search and found the answer.

A search like this

“Does alcohol have a negative effect on people that have prostate cancer”

You will find the following and a lot more about the negative effects of alcohol on prostate cancer.

Yes, alcohol can have negative effects on individuals with prostate cancer. While the relationship between alcohol consumption and prostate cancer risk is complex and not fully understood, alcohol consumption is associated with a higher risk of developing more aggressive forms of prostate cancer and poorer survival rates following a diagnosis. Additionally, alcohol can exacerbate symptoms related to prostate cancer treatment or the enlarged prostate itself.

Some research indicates that men who continue to drink after being diagnosed with prostate cancer have a slightly lower survival rate compared to those who abstain from alcohol.

Alcohol can worsen symptoms associated with an enlarged prostate, such as increased frequency and urgency of urination. It can also exacerbate bladder inflammation caused by radiotherapy, a common prostate cancer treatment.