Water (rain) leak in front window upper gasket

I own a 2016 Forrest River Georgetown XL. It has a no seam front window with a single gasket. The gasket has a couple of leaks over the passenger side. I applied silicone to gasket but did not stop. I have had professional RV repairmen recommend to reseal the gasket OR pull the window and reseal the gasket to the window then to the motorhome. The estimate cost for the later was $500.00. I haven't been able to confirm if they are bonded in case the window breaks. The window might cost around $3000.00 to replace. What would those that have experience and knowledge suggest. Thanks