Turn Crawl Space Into Finished Basement - The cracks in the basement wall will not generally weaken the arrangement of your base, but they will cause other problems namely, water issues.
When it rains outside, particularly if you don't have functional and clean gutters, a lot of that water builds up from the outside of your cellar wall. Unless you get regular basement wall fix to keep these cracks closed, some of that water will enter your basement through these cracks. Even if your basement includes a waterproofing membrane on all of the outside walls, a Substantial enough crack can tear or even shred the membrane and then you're in trouble all over again.
Most such cracks can be repaired from the inside in a cost-effective and timely fashion that does not disturb the soil or that which remains of the waterproof membrane on the outside. Especially handy homeowners can even attempt it themselves, but it is not recommended unless you already know exactly what you're doing.
The perfect method to execute the basement wall repair is by injecting an expanding liquid urethane foam to the crack. When the liquid foam encounters water, it expands dramatically, forcing the foam up and down, inward and outward across the whole length and depth of the crack. It dries and becomes more waterproof in minutes, sealing the crack perfectly. Because it starts as a liquid of about the same viscosity as water, it is going to go everywhere that the water goes. Because it ends up a foam, it is relatively easy to cut off and, if necessary, sand down any of those foam that expands inward though usually, that's not a large issue.