You're wrong on a number of count's here.
First, praying does not have to be worship. It can, be but it can be used to "make an earnest petition".
Second, they aren't "our" saints, they're God's.
Third, any miracles that occur are through God's power. The saints are only intercessors for us, just as if I pray to God for someone, I am an intercessor.
Sometimes you guys petition those Saints...Sometimes you ask them to provide miracles...That's when it is worship...