Your bit is WAY too high. Take off no more than half the diameter of the blade at a time. Looks like you're using a 1/2" bit, so your depth of cut should be no more than 1/4".
Also, try using a smaller spiral bit for end grain. I really like these: https://www.amazon.com/Whiteside-Router-Bits-RFT2100-Diameter/dp/B000HPYOJ6/ref=pd_day0fbt_2/133-4358840-1449901?pd_rd_w=P4gPx&pf_rd_p=bcb8482a-3db5-4b0b-9f15-b86e24acdb00&pf_rd_r=QVFR5HGGQMWWR1Y5G6KC&pd_rd_r=000a5fcb-8d86-4a83-b837-19...
Take off a little at a time and try to bandsaw as close to the line as possible. You're trimming on a router, not shaping.