I've raised everbearing strawberries for more years than I care to count, & have had great crops from first year plants. (I've even gotten berries from runner plants that came on very early in the season & were mature enough to set down roots right away...
although one shouldn't hope for that to happen very often!) Since good production only lasts a few years from a strawberry plant, I always let several of mine keep their runners so I can have new plants coming every year. If I get a runner that I notice is slow to produce a new plant, I pull the runner off & hope the plant will use its energy to flower, instead of putting out another runner.
(UNLESS it's a 3 year old! While a 3 or 4 year old plant might still make berries, they're usually inferior in size & flavor, so it's best to let them keep their runners so they can be replaced with new plants.) No blooms, NO berries, what did I do wrong and what to do now?
You didn't do anything "wrong", so DON'T give up! Strawberry plants only do two things; they make berries & they make babies! Beings that it makes no difference to them what WE want them to do, they're perfectly happy being "fruitful & multiplying"... in no particular order!
If you're in an area where you enjoy a late harvest (through September), I'd say to snip the runners off now & hope that your plants will decide to use their energy to produce berries, instead. (Allow them to throw runners out, later in the season.) If you're in a zone where the weather starts cooling way down in August, I think you may as well cut your losses & leave those runners alone... (The 'up' side being that you can try again next year with even more plants!)
Instead of eliminating ALL the runners, as Terry mentioned, you might just want to take a close look at the plants on those runners & decide which ones you want to allow to continue, & plan on having them in next year's strawberry bed. (Of your 25 everbearing plants, perhaps if you let 1/3 of them keep their runners this year, it would give you a nice start for a strawberry bed that'll keep you in young plants for as long as you want to continue to raise them.) Meanwhile, snip the runners off the other plants, so they can start "producing" over again... (when making babies doesn't work, they often decide to make berries instead.)
Either way, keep an eye on them next year & pull runners off early, so they'll use their energy to flower-up & give you berries. First year plants may (or may not) meet expectations, but look out the second year... as Pat discovered, they'll take off on you & be terrific!
You might want to take a look at what The Garden Helper says about
How to Grow Sweet, Delicious Strawberries .
By the way, GW, welcome to the forum!
You'll find that we're a bunch of friendly people who are eager to help each other with gardening problems,
& most of us are looking for help with ours, too! Perhaps you have some ideas & gardening experiences that you'd care to share with us.
(You mentioned that you built a raised bed for your strawberries... we'd love to hear about how you made yours, & what else you have growing in your garden!)
We look forward to getting to know you better!